ngnrd
Member
So, I've decided to load up a batch of 30-06 using RL-22 behind 180gr Nosler Partitions. It's a combination I haven't tried before, so I dutifully looked up load data in each of the references I have on hand.
Between Lyman 49, Alliant's on line reloading guide, and my two Nosler books, I've checked and cross checked the data for this combo and come up with a good range of powder charges. So, no problem there...
But, I did find something pretty odd. Nosler #6 shows 61gr of RL-22 to be a 114% compressed load, while Nosler #7 shows 62gr to only be a 105% compressed load. What the...? I'm no genius, but if you put more powder into a case, wouldn't that make the load more compressed? Or am I missing something here?
I will say that the Nosler #7 book has more information about the test loads than the #6 version, like tested COAL and case type. But, is there enough of a difference between cases to make that much of a difference in capacity? That's the only thing I could think of that would change the fill rate, unless maybe the bulk density of RL-22 powder has changed significantly.
What say you?
Between Lyman 49, Alliant's on line reloading guide, and my two Nosler books, I've checked and cross checked the data for this combo and come up with a good range of powder charges. So, no problem there...
But, I did find something pretty odd. Nosler #6 shows 61gr of RL-22 to be a 114% compressed load, while Nosler #7 shows 62gr to only be a 105% compressed load. What the...? I'm no genius, but if you put more powder into a case, wouldn't that make the load more compressed? Or am I missing something here?
I will say that the Nosler #7 book has more information about the test loads than the #6 version, like tested COAL and case type. But, is there enough of a difference between cases to make that much of a difference in capacity? That's the only thing I could think of that would change the fill rate, unless maybe the bulk density of RL-22 powder has changed significantly.
What say you?